Infants (3,5-6 yrs) study twice a week. The classes last for 45 minutes. Fee: 440 hrn. for one month (8 lessons). Kids (6-9 yrs) and Juinors (9-12 yrs) study twice a week. The classes last for 60 min. Fee: 580 hrn. for one month (8 lessons). Teenagers (13-17 yrs) study twice a week for 90 minutes. Fee: 720 hrn. for one month (8 lessons). Textbooks. During the school year a set or two (depending on the level) of textbooks should be purchased. The price of books is not included in the course fees.